HVAC Repair in Morristown, NJ
Homes here need heat from October through May and cooling from June through August. If your system quits, tell us what it's doing and a licensed contractor who covers Morris County will get in touch.
Tell us about the job
It takes about a minute.
Eleven months of work, most of it in the cold
Morristown asks for heat from October through May and cooling for June through August. That is eleven months where the system cannot just sit there. Winters bring nights averaging 22°F, and a furnace built to hold a house through that runs long cycles night after night, which wears on the igniter and the heat exchanger over the years. Come summer, afternoons averaging 82°F put the same kind of load on the compressor.
The county has logged 20 winter storms and 188 damaging wind events over the past ten years, and statewide, 11 percent of households lost power for at least a day in 2024. When the power drops and comes back, most furnaces and air conditioners restart on their own, but a system already worn from the season's demands is more likely to be the one that does not.
- 8 months
- October through May, your system heats
- 3 months
- June through August, it cools
- 22°F
- the average winter night it heats against
- 82°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
A new furnace and air conditioner would cut about $190 a year off heating and cooling for a typical Morris County home.
Estimates for a typical Morris County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, New Jersey fuel prices and NOAA climate normals. Your home will differ.
Repair makes sense when one part has failed.
Replacement makes sense when the furnace's heat exchanger is cracked, the air conditioner's compressor has failed, or repairs keep coming.
New Jersey requires HVAC contractors to hold a state license.
The state license is issued through New Jersey's Board of Examiners of Heating, Ventilating, Air Conditioning and Refrigeration Contractors, and it covers the contractor, not the individual job. Towns in New Jersey cannot add their own license requirement on top of it, so the same state credential applies in Morris County as anywhere else in the state.
For a repair job like this one, that license is what stands behind the person working on the system. If the repair involves the gas lines, a bad connection is the real danger in that work, and the state license is what New Jersey uses to hold the contractor accountable for getting it right.
Sources: New Jersey Legislature · New Jersey Division of Consumer Affairs
- Why is my heat not working?
- Most often it is the igniter, a flame sensor that has gotten dirty, or the thermostat calling for heat but not getting a response. Check that the thermostat is set above room temperature and has power first. If the furnace runs but never lights, or lights and then shuts off, that points to the igniter or flame sensor, and a contractor can test both in a few minutes. Winter nights here average 22°F, so a furnace that is short cycling or not lighting needs attention the same day, not the same week.
- Why is my system running but not cooling the house?
- The system running without cooling usually means airflow is blocked or the refrigerant charge is low. Start with the filter. A filter clogged with dust chokes off airflow across the coil, and the coil can freeze up when that happens, which makes cooling worse the longer it runs. If the filter is clean and air is still coming out warm, the refrigerant level or the outdoor unit needs a contractor to look at it, since low refrigerant almost always points to a leak somewhere in the line.
- What can I check before calling for HVAC repair?
- Check the thermostat first. Make sure it is set to heat or cool as needed, the temperature is set past the room temperature, and it has fresh batteries if it uses them. Check the filter next and replace it if it looks gray or packed with dust. Then look at the breaker panel. A tripped breaker will shut the whole system down and is easy to miss. If the outdoor unit is covered in leaves or debris after a storm, clearing the area around it can also help. Past that, a contractor will need to diagnose it.